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How to Use Rust Procedural Macros to Replace Panic with syn's Fold

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How to Use Rust Procedural Macros to Replace Panic with syn's Fold

In this article, we show how you can write advanced macros to step through Rust code and modify it. Using the standard tooling available in the syn crate, we first show how to change the occurrence of a panic into an Err. Then we go a step beyond and use the Fold trait to recursively step through the entire function, automatically executing a change in every applicable location.

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How to Use Rust Procedural Macros to Replace Panic with syn's Fold

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How to Use Rust Procedural Macros to Replace Panic with syn's Fold

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